135474156729 has 6 divisors (see below), whose sum is σ = 195684893066. Its totient is φ = 90316104480.

The previous prime is 135474156707. The next prime is 135474156737. The reversal of 135474156729 is 927651474531.

135474156729 is a `hidden beast` number, since 1 + 3 + 5 + 4 + 74 + 1 + 567 + 2 + 9 = 666.

It can be written as a sum of positive squares in only one way, i.e., 127055176704 + 8418980025 = 356448^2 + 91755^2 .

It is not a de Polignac number, because 135474156729 - 2⁹ = 135474156217 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (135474156739) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 7526342032 + ... + 7526342049.

Almost surely, 2^135474156729 is an apocalyptic number.

It is an amenable number.

135474156729 is a deficient number, since it is larger than the sum of its proper divisors (60210736337).

135474156729 is a wasteful number, since it uses less digits than its factorization.

135474156729 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15052684087 (or 15052684084 counting only the distinct ones).

The product of its digits is 6350400, while the sum is 54.

The spelling of 135474156729 in words is "one hundred thirty-five billion, four hundred seventy-four million, one hundred fifty-six thousand, seven hundred twenty-nine".